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Related Experiment Video

Updated: Jun 2, 2026

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Published on: October 20, 2016

Left ventricular rotation and twist: why should we learn?

Satoshi Nakatani¹

¹Division of Functional Diagnostics, Department of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan.

Journal of Cardiovascular Ultrasound

|April 27, 2011

Summary

Left ventricular twist during systole and untwist during diastole are crucial for heart function. Speckle tracking echocardiography makes these cardiac mechanics measurements more accessible for clinical practice.

Keywords:

Cardiac mechanics Myocardial fiber Relaxation Speckle tracking echocardiography Torsion Wringing

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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

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Last Updated: Jun 2, 2026

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Published on: October 20, 2016

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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Published on: October 28, 2020

Area of Science:

Cardiovascular Physiology
Cardiac Mechanics
Echocardiography

Background:

The left ventricle exhibits twisting (rotation) during systole and untwisting (recoil) during diastole.
This mechanical action is vital for efficient left ventricular ejection, relaxation, and filling.
Traditional methods for assessing cardiac rotation and torsion are invasive or require magnetic resonance imaging.

Purpose of the Study:

To review the mechanisms and influencing factors of left ventricular rotation and torsion.
To highlight the role of speckle tracking echocardiography in assessing these cardiac mechanics.
To anticipate the integration of these measurements into routine clinical practice.

Main Methods:

Review of existing literature on cardiac mechanics, rotation, and torsion.
Discussion of speckle tracking echocardiography principles and applications.
Analysis of factors affecting left ventricular twist and untwist.

Main Results:

Left ventricular twist stores potential energy during systole, aiding ejection.
Untwist during diastole releases this energy, facilitating relaxation and filling.
Speckle tracking echocardiography offers a non-invasive method to measure rotation and torsion.

Conclusions:

Cardiac rotation and torsion are fundamental to normal heart function.
Speckle tracking echocardiography enhances the accessibility and clinical utility of measuring these parameters.
Routine clinical use of rotation and torsion measurements is anticipated with further adoption of echocardiography techniques.